A wagering requirement is the number of times you must bet the bonus amount before you can withdraw any winnings made from it. One of the most important aspects of casino bonuses to understand is wagering requirements. No deposit bonuses and free spins may be credited to your account without any action required on your part, although this varies by casino. Bonuses are typically claimed by making a deposit, entering a bonus code, or simply by clicking on a link in a promotional email.